Starnews/AFP/Getty Images(SEOUL, South Korea) -- A singer and television celebrity in South Korea has admitted to secretly filming and sharing sex videos on the group chat of a social networking app, and has announced his retirement from show business. Jung Joon-young apologized to his victims and his fans on Wednesday.

“I admit all my crimes,” Jung said in a public written apology. “I filmed women without their consent and shared it in a social network chat room, and acted without feeling any sense of guilt doing so.”

Jung is under investigation for crimes of a sexual nature, the Seoul Metropolitan Police Agency confirmed to ABC News. Another K-pop star, Seungri, a member of boy band Big Bang, is also under investigation for sex bribery. Seungri was part of the group chat where Jung uploaded sex videos, according to Yonhap News.

Jung was accused in 2016 of allegedly filming his ex-girlfriend during sex without her permission, according to the IBT Times. Those charges were eventually dropped.

Jung made his debut on the South Korea K-pop scene through a talent show called “Superstar K 4” in 2012. He gained popularity by releasing rock music albums and starring in TV shows until the news broke last week.